Sen. Rand Paul is taking his own message of fiscal conservatism to heart, returning about 17 percent of his Senate office budget to the U.S. Treasury.

“It’s the only budget I control,” Paul (R-Ky.) said on Wednesday at a news conference in Louisville, Ky., according to a Thursday report in The Courier-Journal, a Louisville-based publication. “It’s not enough, but it’s a start.”

Paul, who is set to return $600,000 from his $3.5 million office budget, has returned six-figure sums before.

The libertarian-leaning lawmaker said his office scrutinizes spending from big-ticket items like travel, down to “computers, paper, ink cartridges. Everything we buy,” the report said.

A POLITICO review last year, however, found that many lawmakers on both sides of the aisle return at least a little of their office budget to Treasury.